We've never had nannies. We've had great grandparents, great support from family, and the kids have been on every set: they've seen me play Gollum, King Kong, Captain Haddock, the lot. They totally get it, and they want to go into the business. Ruby, my daughter, is very keen to become an actress.

I think even back as far as 'Lord of the Rings,' there was always the chance that 'The Hobbit' would be made, even way back then. Of course at that point, Peter Jackson didn't probably think at that point that he'd be directing it.

There is always that potential in the same way - Roddy McDowall ended up playing Cornelius to Caesar [in the Planet of the Apes]. Two different characters. That's the joy of the craft. Bring it on I say.

People think, 'Oh, well how can 'The Hobbit,' which is one book, become three films?' But you can take one line from an appendice and it turns into a whole sequence.

Working with people you adore and love. There's just a sense, all the way through all of the movies [Planet of Apes], that you're very rarely in a position where you have great material that you're passionate about and a big audience who love it, and the detail and nuance, and the exquisiteness of the fantastic actors and director with great writing.

At the moment, my trajectory isn't to think about acting. I'm absolutely devoted to The Imaginarium, our projects and directing. And watching and enabling other actors do their thing in our studio is hugely rewarding. I expect at some point I'll probably want to go back on stage and do some theater, because I've not done theater in 10 years.

People are mystified by it and so they kind of think, the acting community thinks they're gonna be replaced by CG characters and animators think they're gonna be replaced by performance capture (and) a lot of directors, particularly European directors, who have no experience of it.